Fi Technical

I have a bmw 328xi sedan and im gonna be running a single 12" fi q in a sealed enclosure because i wanted more sq the sub has the high qts option and the heat ring the website says .8-1.5 cu. ft what im wondering is what would be optimum size for the best sq for a wide range of music.

Can it be done to extend the gap limits?

YESSSSSSSSSSSSSSSSSSSSSSSSSSSS enclosure 3.7cu ft net volume after port and displacement tuned to 33hz My BTL full loaded off the Digital Designs Z1 is a wonderfull combo...... but very disapointed to have issues with this amp...... huge power but poooooooor quality

:bigclap: hi I am new here and I wanto to know How I cant buy a FI speaker. I need to aknow a telephone number thanks my email is [email protected]

I have 2 btl 18s, 220 amp alt, kicker 1/0 wire 2 aq 3500's (should be here monday). I am currently building my box and have NEVER ran with this much power before so I wanted to make my box a little smaller than my old one I am looking at about 11 cubes net tuned to 36 hz 152 square inch port. I just would like some input if I should go bigger or smaller on the box please input asap...oh ya by the way the subs are dual 2 ohm fully loaded ( I have pics of my equip if anyone needs proof lol)

Need to recone my 12Q i bounced a screw threw it drilling it down. rip in the rubber

ok, I'm about to attempt to build my first enclosure for Fi Q 12. 1.9ft ^3 tuned 30hz. Where can I get demensions and what items do I need. Such as brands of glue, type of screws, etc. If I Take mesurements to Home Depo, Will they cut the pieces for me? Is it difficult to make a Enclosure, I read that its pretty easy.

Hi all. I'm about to order a btl 15 d2 with cooling, I heat ring, and high Xmax coil. I have a hifonics bxi2010d. I came up with this box design, but I want to make sure I haven't overlooked anything important. Will I get port noise or any other bad stuff? Its for the trunk of a 97 ford thunderbird. With the current design I have, the box would be lying with the port and the sub facing up toward the rear deck. I could change the dimensions slightly, any comments or suggestions would be appreciated. EDIT: link to image was broken

Hi, have my new car since a few days now, a 08 BMW 330xd :bigclap: :bigclap: :bigclap: But this time i just want a lil boombox in the panel of my trunk. I just ordered a 10 inch Fi SSD Dual 2 Ohms today and expect it by the end of the week... I wanna put it in a sealed enclosured like this finished looks like this I measured about 0.5-0.6 cu ft What you think, will this work fine?? And it gets about 900 RMS

i will be buying 3 12" q's in the future with the bp option but was wondering what VC comes in these, the site just simply says 3" 4 layer coil. is this a flat coil, or a copper coil or what, i was reading the coil options listed and it would seem to me that a copper coil would be best in this with it being a SQ orriented sub, but correct me if i am wrong. Will be running these off a Sundown 3000d on a daily set up that will see comps ocassionally wired in a series/parallel combination to right at 1 ohm. FI guys prefered on replies as i am looking at thier view point being that i know they know thier products better than no one else. no offense to anyone else there so pl…

Guys Prob havent post for over a year now, thats because I have kept all my things in the closet and lost touch about car audio while playing mafia wars LOL. My question are: i. How long does a sub magnet stays magnetize? In my place 33c-35c is considered a normal sunny day. ii. Does heat from the sun + heat from playing music will effect the magnet strength? iii. Does keeping the sub in the closet (its bare and I didnt put it in the box) will have other effects like rust, deterioration of rubber, spider getting weaker etc? Btw I own 2 15Q's which I bought back in 2007

what fi specifiacations (dual voice coil, hixm, etc) shoud i pair up with a 2600 rms hifonics?

I'm getting ready to build an enclosure with 2 BL 15's in my 06 Civic and was wanting to know what frequency would be best for both daily and competition.

I am running a kicker 1500.1 and a dual 1 ohm 15'' bl from my factory nav/cd player in 05 escalade using a audio control epicenter plus and was told that my kicker amp does NOT have subsonic filtering for the sub PLEASE what do I do? Also my box is 4.00ft.^3, port area 56.00in.^2, and tuned at 30hz

Just wondering what options I have to get this motor reconed. Are there any options I can choose to build a custom or hybrid sub or do you only have a standard setup for recones. thanks

Looking to build new system. Planing on using a Memphis 2500 watt amp to each sub. This system will be mostly for SPL but also some daily listening. Will be using 10" or 12" subs. Just wondering which Fi sub would work best. Will start with 2 subs but move to 3 at a later time and maybe a Memphis Mojo 4kw to each also.

I have two Fi X 12's and the tensil leads slap really bad. I have about 450watts on each.. i know the RMS is 300 watts.. but the sub is still putting out clean sound other than the leads... i noticed that the tensil's aren't aligned with the pad on the back of the cone. if i were to relocate the pads do you think this would solve the problem? THANKS

Right now I'm in the middle of my build with 2 18" BL's with a Trutech Hammer H1 per sub in a 16cuft wall tuned to 30hz. After this I'm pondering changing to two BTL 18's with a DDZ1. Just wondering would it be worth it in terms of being a major leap over the BL's and the Hammers ?

currently have 2 18" bl's off a kx2500.1 @ 1 ohm. birthsheet states ~3kw @ 2 ohms. here is my post copied from ca.com "currently they are sitting in 11.5 cubes or so tuned to about 35hz. output is pretty good but still not quite where i want it to be. seems like with my ammount of power they should be louder, especially for 2 18's. the only thing i can think of is box volume being on the small side. i was told by the FI guys that 5.5-6 cubes would be fine with my power, but im having doubts now. im thinking of sacrificing my rear seats and build the box to take up the whole cargo area but still be at/under the window line. this would give me a chit load more room to work …

Hello all. my enclosure will be finished soon.. like i haven't a lot of space in my CLK trunk,i have made a 3.6 cu ft @ 33hz box(after port and diplacement... 55 square for the port area). So do you think it's good for daily? (no SPL competitions)... low will be good? good SQ ? value for the subsonic? I have ordered my amp, a "little" Digital Designs Z1 this beast give 4000-4500w/1ohm at 12v.. my new batt is a NSB90(enough for the Z1) give me your ideas,pronostics i'll be back with a video soooooonnnnnnnnnn... ps:Scott,like you have told me,i have dropped my car ....2inch with the total weight

To figure out the square inches of port area needed per cubic ft of volume, do I just multiply the vent width by vent length? And then I just take that number and divide it by how many cubic ft the box is? This is what I'm just guessing as I'm not sure of this. Please help.

over a year ago i purchased my 2 fi btl n2 15's fully loaded, and because i waited 4 months to get em, i didnt wanna wait to install, so i went to a local shop to have a box built and installed, it was supposed to cost around 500, but ended up being 800 when i left, a few months later i got into a small fender bender and the box fell just fell appart, i took it back for repairs and they said the could do it for 100, so i did it annnnd, nothing was really fixed except they just re positioned it, it has been un hooked after the alternator they sold me died, i and just gave up at that point. recently i have decided to rebuild and everything with the help of my uncle cause i …

Ok, so I was wondering. A 12 in it's largest recommended enclosure, or a 15 in its smallest recommended enclosure, which has the more potential to get louder? Playing around with ideas here. Thanks, ~Trevor

Hey so i want to tune my box to 32 hz. but i am confused on how this whole box design works. the previous systems that i have had i just bought boxes, but this time i want to build my own. i drive a jeep cherokee so i have plenty of room in the back end for a big box. will someone please give me the exact measurements of the port, width, height, length, and any other measurements i would need! that would be soooooooo awesome! thanks. or even better email me a sketch with all the measurements on it. my email is [email protected]

i am willing to use my whole trunk if necessary...you guys think it will fit?and sound good....i already know it will look good that thing is huge haha....also ...how should i wire it?...i have a t8002 for now but i am going to upgrade real soon...i bought the dual 1...any tips?